/**
 * Copyright (c) 2012, Brent Mucci
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 **/

#ifndef _MCL_CL_IMAGE_HPP
#define _MCL_CL_IMAGE_HPP

#ifdef USE_OPENCL

#include <sstream>
#include <iostream>
#include <fstream>
#include <CL/cl.h>

#include "mcl_common.h"
#include "mcl_image.h"

namespace mcl
{

const char* getClErrorStr(cl_int errorNum);

class CLImage
{
public:
	CLImage();
	~CLImage();

	void loadCLProgramFromFile(const std::string &fileName);
	cl_int buildProgram();
	cl_int setParameters(	const unsigned int sourceWidth, const unsigned int sourceHeight, 
												const unsigned int destWidth, const unsigned int destHeight );
	bool resizeBilinearOpenCL(const Image &source, Image &dest);

private:
	cl_platform_id m_firstPlatformId;
	cl_uint m_numPlatforms;
	cl_device_id m_device_id;
	cl_int m_err;
	cl_context m_context;
	cl_command_queue m_commands;
	cl_program m_program;
	cl_mem sourceImage, m_destImage;
	cl_kernel m_kernel;
	size_t m_globalSize[2];
	cl_uint m_numMatchingDevices;
	char *m_openCLProgram;

	unsigned int m_sourceWidth, m_sourceHeight, m_destWidth, m_destHeight;
};

}; // namespace

#endif

#endif